by JimDirt » Thu Sep 24, 2015 7:52 pm
Sorry for not getting back sooner , i was at a Dr appointment today , it was 80 miles each way , so makes for a long day
Anyway , the oil level is more of a ride and feel thing , if the bike bottoms too easily , then add some oil , but only add about 10cc at a time to each fork , you can do this thru the air bleed screw with a syringe , otherwise you have to remove the fork cap , which you can not do if the clamps are tight on the tube , so try to do this before you leave for the track if possible , stock my 450R calls for 402cc of oil in the forks , i run 380cc , but i also re-valved my suspension so the oil level is set to work with that , i run 380cc on both my 450R and 450X , if your valving is stock add what the manual says then go from there , but don't add too much , , stay within the 372cc to 413cc range for your bike
As far as the springs go , since your needing it ASAP , go with the 5.9 rear , it will work with the 0.48 fork springs , if you notice the bike steers too quickly or knifes a little , then LOWER the forks in the clamps 2mm and that should help , but i think you will be fine with the 0.48/5.9
Start your clickers out at 12 (12 out from just lightly seated) and adjust from there , do this during practice , do a lap or so , and click , then try again , if it feels worse then go the other way 2 clicks at a time , then dial in the final setting , you may have to adjust this as the day goes on , as the track will get rougher throughout the day , set the suspension so on the biggest jump , it might bottom or come close to it , but it should not bottom on every jump , just keep turning the compression clickers in 2 clicks at a time till the bike feels good under you , it should not dive into corners , and it should not push into or out of corners , set your rebound (forks) so the bike does not act darty , especially in whoops , set the rear rebound so the bike does not kick off jump faces , but does not pack under load from the whoops *packing would feel like you were going over bumps with the rear wheel locked up , it would slam to the next one and feel like the tire never left the ground*(the Rebound is the speed of the shock *or fork* shaft extending/rebounding , so if the bike bounces around , then you need to slow the speed down *softer*) , the high speed compression on the shock is for square edge holes and sharp edges , in other words the higher speeds of the shock shaft , not the physical speed of the bike , Low Speed Compression is for slower shock shaft speeds , that should get you thru the weekend
Your stock base settings are
FORKS:
Compression: 8 clicks out(turn all the way in till lightly seated , then out (counterclockwise) from lightly seated
Rebound: 9 clicks out from lightly seated
SHOCK:
High Speed Compression: 1 3/4 - 2 1/4 turns out from lightly seated
Low Speed Compression: 9 clicks out from lightly seated
Rebound: 7-10 clicks out from lightly seated
2020 CRF450R
2006 CRF450X
Weiser , Idaho